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Finding the Fourth Proportional to 623,962.90, 936,178.80 and 371,388.70

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Solution

The fourth proportional to 623,962.90, 936,178.80 and 371,388.70 is: 557,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,962.90 : 936,178.80 = 371,388.70 : x
  2. Step 2: Convert to fraction form
    623,962.90/936,178.80 = 371,388.70/x
  3. Step 3: Cross multiply
    623,962.90x = 936,178.80 × 371,388.70
  4. Step 4: Simplify right side
    623,962.90x = 347,686,227,499.56
  5. Step 5: Solve for x
    x = 347,686,227,499.56/623,962.90
  6. Step 6: Final answer
    x = 557,222.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.